Type-writing machine.



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TYPE WRITING MACHINE. APPLICATION FILED AP R.6. I916.

- WITNESSES 1? 4. w 777 .4

Patented 001;. 231917.

e. sfsome, I I TYPE WRITING MACHINE. APPLICATION FILED APR..6. I916.

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' WITNESSES INVENTOR A TTORIVEYS I I PatentedOct. 23,1917.

G. G. GOING.

TYPE WRITING MACHINE.

APPLICATION FILED APR. e. 1916.

1,243,730. Patented Oct. 23, 1917.

3 SHEETS-SHEET 3- m an - WITNESSES 3 I INVENTORG )rronuns sw ns enonen comm some, or mrnnnnrown, CONNECTICUT, ASSIGNOB "ro run norsnnn'ss I'YPEWBITER COMPANY, OF MIDDLETOWN, CONNECTICUT, .5. CORPORATION OF connn'crrc'or. I

mamas.

To all whom it mayconcem:

Be it known that l, Gnoncr. Goi'nln GOING,

a citizen of the United States, residingat Middletown, in the county of Middlesex and State of Connecticut, have invented certain new and useful Improvement-sin TypeWrit ing Machines, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relatesto'typewriting machines and more particularly toassociated carriage controlling and ribbon driving mechanisms.

One of the objects of the invention is to provide simple and practical means for disconnecting the ribbon feeding mechanism when the carriage is freed for tabulating movement.

Another object is to p'rovide'improved tabulating and margin releasing devices for the 'tyfpgewriter carriage.

A. rther object is to associate coiipera tively, tabulating means, margin releasing means, and ribbon feeding means, in a manner to insure their reliable operation and to efiect advantageous results.

Other objects and advantages will be in part obvious and in part noted hereinafter in connection with a description of the accompanying drawings which illustrate a typical embodiment of the invention.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the, following claims.

In the drawings, Figure 1 is a perspective view of certain parts of a typewriter.

Fig. 2 is a side and sectional view longitudinally of the machine. 4

Fdig. 3 is a partial top plan view thereof, an

Fig. 4 is a detail view of cooperating carriage steps.

The inventlonis directed in general to arrrn-wnrrrne macnmn.

. Specification of Letters Patent.

the same functional advantage to various.

other styles of machines. I

Referrin more particularly to the drawings, there is indicated in Fig. l a typewriter having side walls 1 and a rear cross brace 2. A carriage 3 (Fig. 2) is mounted atthe upper rear part ofthe machine for longitudinal letterespace and vertical case-shifting movement on a guide rail 4. A longitudinalcarriage rack 5 1s arranged beneath therail 4 and normally meshes with a rotatable pinion 6 having suitably splined to the lower end of its shaft an escapement wheel 7 arranged for cooperation with fixed and movable dogs of escapement rocker 8, the latter being in turn controlled by suitable universal bar mechanism and other devices, as desired, to effect letter spacing.

Two ribbon spools are mounted adjacent the side walls of the machine frame and arranged to carry an inking ribbon from one to the other in the ath of travel of the type carriers. The ribbon spools are provided with shafts 9 havin bevel gears 10 fixed at through a gear connection 13 by the shaft 14 Patented Diet-23, 1911.7; Y

ApplioQtionhledtlprilS,1916. Serial no: 8 9,263., 1 I.

of the carriage-driving spring drum 15 so i that as the carriage is fed in its letter space movement, winding motion is im arted to one of the ribbon s'pools. Automatic reversing means is provided to insure rewinding of the ribbon upon either spool when the same becomes unwound therefrom. this purpose the driving shaft 12 may be provided with two fixed peaked cams 16 po-.

For.

sitioned beneath the lower extremities of spindles 17- vertically movable in the ribbon shafts and normally held elevated by levers 18, which are drawn toward the ribbon shafts when the ribbon is coiled about its and behind the platen roll, there is provi a stop rail 21 having mounted thereon a plurality of margin stops 22 and a plurality of intermediate tabulating stops 23. The stop rail is notched and the various stops are removably mounted thereon, whereby their longitudinal position with respect to the carriage may be varied. The rear of the machine is also provided with a tie brace 24 extending upwardly behind the carriage and having at its extremity spaced portions 25 between which is disposed the extremity 26 v of a movable stop lever 27. This lever is extended downward and pivoted about a vertical axis 28 on a block 29, in turn mounted on a bent shaft 30 as a horizontal axis,

so that the extremity 26 of the stop lever is capabletof movement in the eneral direction of the carriage travel an also at right angles thereto. The stop lever is normally positioned in the path of movement of the margin stops 22 in such a manner that as the carriage travels to the right or left, its limit is established in accordance with the adjusted position of the margin stops. The tabulating stops 23 project from the stop rail 21 to a lesser extent than the margin stops, to thereby clear the stop lever 27.

To release the carriage at either margin for limited additional travel in the same direction, there is provided a margin release lever 31 pivoted medially to a stud 32 on the side wall of the mahine and having its rear end forked at 33 to straddle the bent extremity 34 of the shaft 30. This connection is such that the shaft 30 is rotated to carry the stop lever 27 rearward and free the corresponding margin stop 22, when the lever 31 is depressed.

Tabulating mechanism is provided to simultaneously free the carriage" from the V escapement mechanism and to move the stop lever 27 forward into the path of movement of the tabulating stops 23 on the rail 21. More specifically, a tabulating lever 35 is pivoted at 36 to a supporting bracket 37 rigidly fixed to a front cross piece 38 of the machine frame and has at its rear extremity spaced bent ears 39, 39' straddling the adjacent portion of the margin release lever 31. The tabulating lever further has a right-angled downward extending arm 40- having pivotal connection witha rearward horizontally extending thrust llIlk 41 conon ,the rear of the traveling carriage].

nected in turn at its rear end to an arm 42' fixed to a rotatable shaft 43.. This shaft carries at its opposite end a depending arm 44 positioned immediately in the rear of an offset arm 45 of the relatively fixed escape-.

ment dog 46. This construction is such that upon de ression of the tabulating key,

the thrust lin 41 is moved rearward thereby rotating the shaft 43 to carry t e arm 44 against the free end of the escapement dog 46, forcing the latter out of en agement with the escapement wheel, and t ereby freeing the carriage for longitudinal tabulating movement. At the same time the lower ear 39 on the tabulating lever 35 is raised to engage the lower edge of the margin release lever 31, thereby moving the forward end of the latter slig tly upward with an attendant depression of the rear end and consequent rotation of the shaft 30 to carry the extremity of the stop lever 27 forward into the path of travel of the tabulatin stops 23 on the mar 'n rail. Movement 0% the carriage is there ore permitted until the adjacent tabulating stop engages the sto lever end 26. Upon release of the tabulating key,-the escapement dog 46 again engages a tooth of the escapement wheel 7 and the carriage is held stationary.

It will be noted that the carriage driving spring also constitutes the source of power While the carriage is freed for tabulating work. But as no printing is efi'eeted during such travel, it is advantageous to hold the ribbon stationary and thereby economize the printing surface of the same. For this purpose, there is provided a V-shaped cam 47 fixed on the ribbon driving shaft 12, and a bracket 48 fixed on a spindle 49 disposed adjacent and parallel to the shaft 12. This bracket 48 has a rear lever arm 50 positioned to engage and ride over one of the inclined faces of the cam 47, upon rotation of the spindle, to thereby move shaft 12 longitudinally from. either extreme position to an extent which disengages said shaft from both the s 001 shafts 9. The dimensions of the cam. 4 and cam 20 are such, however,

that upon reverse rotation of spindle 49 tabulating connection. As the tabulating key is depressed, therefore, arm 52 engages bracket arm 51, rotating spindle '49 and effecting dlsconnection of the ribbon spools durlng free tabulating travel of the carriage above construction and many app Shawn the" accompanying drawings shall in. the.manner described. The indle 45 is journaled through one. side wa of the machine and is provided therebeyond with an operatingmember 53 whereb the spindlen'iay" be manually rotated in ependentl of thetabulating'mechanism when desire a. g. for stencilingpurposes. As manyfchanges could widely different embodiments of this inventien'could beinade "without departing from the scope thereof, it is intended 'that all matter contained in the above description or carried thereby, a movable stop normally'po sitioned to coeperate with said marginstops,

' means including a margin release lever for freeing said movable stop from said margin stops, ribbon' feeding means, common drivfl ingmeans for said carriage and said feeding means, and tabu1ati'ng"means' to free said carriage coep'erable with said marginrelease lever to move said movable stop'to coactwith said tabulatin stops and with said feeding means to ren er the latter inefi'ec- 'riage.

2. In a typewriting machine, in combination, a carriage,*spaced ribbon shafts, a driving shaft movable longitudinally for connection with either of said'ribbon shafts or disconnection from both, common driving means for said carriage and said driving shaft, means including a rotatable member to edect disconnection of said driving shaft from both of said ribbon shafts, an operating handle at the side of the machine for said member, tabulating means for said carriage including a lever operable from the key-board of the machine, and a lost-motion connection between said lever and said memher for permitting rotationof the latter eitheriby said handle or by said tabulating means.

3. In a typewriting machine, in combination, a carriage, spaced ribbon shafts, a driving shaft movable longitudinally for connection with either of said ribbon shafts or disconnection from both, common driving means for said carriage and said driving shaft, automatic means to effect disconnection of said driving shaft from one of said ribbon shafts and connection with the other for reversing the ribbon feed, manually operable means to effect movement of said driving shaft from either extreme position to the other at will, independent manually operable means to effect movement of-said to central position.

be made: in the arently hiis' described m invention, what I: claim as new and desireto secure LettersPatentfis:

tive during tabulating travel of said car cam.

6. In a typewriting machine, in combinaeither extreme position to a central position, and independent means to effect movement of said drivin shaft from either extreme position toward ut not driving shaft from 4. In a typewriting machine, in combination, a carr age, spaced ribbon shafts, a driving shaft Jmovable longitudinally for connection with either of said ribbon shafts or disconnection from both, common driving means for said carriage'and said driving shaft, automatic means to effect disconnection of said driving shaft from one of said ribbon shafts 'and connection with the other for reversing the ribbon feed, manually operable means tojefiect movement of said driving shaft from either extreme position to the other at will, independent manually operable means to e'fiect movement of said driving shaft from either extreme position to .a central position, and resilient means to insure connection of said driving shaft with one of said ribbon shafts after operation. of said automatic means, said manually operable means or said independent means.

5. In atyp'ewriting machine, in combination, spaced ribbon shafts, a longitudinally movable driving shaft adapted for selective' connection therewith, a V-shaped' cam fixed to said driving shaft, and a pivoted member rotatable to ride over an inclined face of said cam for freeing said driving shaft from both of said ribbon shafts when said member is seated in the trough of said tion, vertical ribbon shafts, a horizontal" driving shaft therefor adapted for selective connection therewith, a rotatable spindle extending adjacent and parallel to said driving shaft, and coeperative means on said spindle and said shaft for freeing the latter from both of said ribbon shafts.

7. In a typewriting machine, in combination, spaced verticalribbon shafts, a horizontal driving shaft therefor adapted for selective connection with the lower ends of said ribbon shafts, a rotatable spindle extending adjacent and parallel' to said driving shaft, and coiiperative means on said spindle and said shaft for centerin the latter to-free both of said ribbon sha ts.

8. In a typewriting machine, in combination, spaced vertical ribbon shafts, a hori- Zontal driving shaft therefor adapted for selective connection with the lower ends thereof, a rotatable spindle extending adjacent and parallel to said driving shaft, and coeperative means comprising a V- 'shaped cam fixed to said shaft and a lever fixed to said spindle for centering said driving shaft tofree both of said ribbon shafts.

9. In a typewriting machine, in combination, a carriage, ribbon feedin mechanism, common driving means there or, means to tabulating movement of said carriage an also operable by hand independently of said first means'to render said mechanism ineffective at will. 10. In a typewriting machine, in combi- I nation, a carriage, an escapement therefor,

ribbon feeding mechanism including a shiftable driving part, a common driving device for said.carr1agc and mechanism, resilient means constantly urging said shiftable. part to establish ribbon drive in one or the other direction, manually operable means to move said shiftable part to an intermediate position automatically maintained, and tabulating means to free said carriage from said escapement and operable to move said shiftable part from either extreme position While insurmg its return thereto by said resilient means upon release of said tabulating means.

11. In a typewriting nation, a carriage, r' bon feedlng vmechanism, common driving means therefor, tabulating -means includln a depressible key to free said carriage or tabulatin movement, and means operable by said ta ulating means to render said mechanism inefiective only during depression of said key and independently operable to set said mechanism in a stable ineifective condition.

' 12. In a typewriting machine, in combination, a carriage, an escapement therefor,

ribbon feeding mechanism, cooperable stops for said carria e, a margin release key to disengage certain of said stops, a tabulator key to free said carriage from said escapement and to render said mechanism ineffective, said tabulator key being constructed and arranged to act through said margin release key for insuring cooperation of certain of sald stops to limit tabulating movement of said carriage, and said m'argin release key being constructed and arranged to act independently of said tabulating key.

13. In a typewriting machine, in combination, a carriage, ribbon feeding mechanism including a shiftable part having fixed machine, in combi aaaaaao thereon a V-shaped cam tvithfa medial dwell, common driving means, for said carriage and said mechanism, means including a part manually operable to coact with said cam and. enter said dwell for shifting said first part to a stable intermediate position wherein said mechanism is inefiective, tabulating means to free said carriage for a tabulating movement'and constructed and arranged to cause said second part to coact with said cam without entering said dwell for shifting said first part to an intermediate but unstable position wherein said mechanism isinefiective.

14. In a typewriting machine, in combination, a carriage, ri bon feeding mechanism including a horizontally disposed and longitudinally movable driving shaft, common driving means for said carriage and said mechanism, a spindle disposed arallel to said shaft and fixed against longitudinal movement, cooperating means on said shaft and spindle to effect release of said mechanism, tabulating means to free'said carriage, and a lost motion connection between said tabulating means and said spindle to insure release of said mechanism upon operation of said tabulating means.

15. In a typewriting machine, in combi-- feed, and adjacent parts on the exterior of the machine to permit longitudinal movement of said shaft and rotation of said member.

In testimony whereof I aflix my signature,

in the presence of tWo Witnesses.

GEORGE GQULD GOING.

Witnesses:

I). B. WESTIN, ERENA K. ALLEN. 

